Bolt-anchor.



UNITED" srarns HENRY B. NEWHALL, JR., 0F LAINFIELD, AND 'HENRY .V. PLEISTER, GF WESTFIELD,

" NEW JERSEY; SAID PLEISTER ASSIGNOR TO HENRY B. NEWHALL, SR..

BGLT-ANCHQR.

To all lwhom t may concern Jr., of Plainfield, in the county of Union and-State of New Jersey, and HENRY lV.

Pianisten, of Westfield, in `the county of Union and State of New Jersey, citizens of the United States, have joint-ly invented cer- Itain new and useful :improvements in Bolt- Anchors, ot' which the following is a specication, taken in connect-ion with the `accompanying drawings, which form a part of the same.

This invention relates to bolt anchors, and more'particularly to means for permitting a bolt anchor ofa given cross section to be used with a wide range of screws or bolts of different crosssections. By .our invention it' is not necessary for the dealer to carry a large range of differentsized holt anchors to coperate with a large range of different sized screws or bolts, for oney of our bolt anchors will cooperate, within a wide range, with bolts or screws of various cross sections. The smallest bolt or screw, which is adapted to cooperate with any of our particular sized bolt anchors, cuts' its own thread on the interior projections or ribsu without substantially bending or distorting them. The largest screw or bolt which can be used with any particular sized bolt anchors will form its own seatin the bolt anchor by bending down and re-positioning the interior ribs.or projections to forni a new interior bore within `the bolt anchor within which it will cut own cooperating screw threads. The ditierent sized bolts or screws, between the minimum'and maximum cross section with which any particular sized bolt anchor is' adapted to he used, will readily cooperate with the interior projections or ribs of the holt anchor and bend them, more 'or less, to t the particular1 cross section of the screw or holt. v i

Our invention further' comprises certain details of construction which will be more and in which the same reference numeralsl refer to similar parts 1n the severa-l iig;

ures,-Figure l is a side elevation of one form of bolt anchor equipped with our invention, the support and the article supported being shown in section, with the coperspeeincauon ef Leiters raient.

Application filedllay 29, s'l.

Patented Apr. i, MMS.

Serial No. 630,116.

i l ating bolt in side elevation; Fig. 2 is a ver- Be 1t known that we, HENRY B. NEWHALL,

tical section on the line 2 2 oi'- F ig. l; Fig. il is across section ofthe holt anchor shown 1n Fig. l when usedcwith a larger bolt or screw than that illustrated in Fig. l; the bolt being shown in section; Fig. l is a cross section through the bolt anchor shown in Fig. l, illustrating the position of the parts when a still larger holt is used, the holt or screw being shown in section; Fig. 5 is a vertical section through a bolt anchor equipped with a different forni of' our invention, the bolt being shown in side elevation; Fig. 6 is across section on the line 6-6 of Fig. 5; Fig. 7 is a crossV section ot the bolt anchor shown in F ig. 5 but used with a larger holt than that illustrated in that ligure; Fig. 8 is a side elevation of a two-part bolt anchor equipped with our invention, the support and article supported being shown in section; Fig. 9 is a lvertical section ot the bolt anchor shown in Fig. 8; Fig. l0 a transverse vertical section substantially on the line 10-10 of Fig. 8; Figli is a cross section of the holt anchor shown in Fig whcnused with a larger bolt than that' and Fig. 15 is a detail view of a furtherv modification.

In the Villustrative embodiments of our invention shown in the drawings, l is a bolt anchor provided with a ring 2 and with a plurality of tines 3, 3. On its exterior surface wemay, though not necessarily, arrange transverse ribs-il, 1l, and longitudinally extending ribs 5, 5to bite into the wall 4G of the aperture 7 in the support S which may be of brick, masonry, stone, wood, terra cotta, or any material.

lli/ ve provide the interior. bore of the bolt anchor l with one or more interior projecL tions 9, 9. These projections are preferztbly arranged in the form of longitudinally eX- tending ribs, though they may he simply pins 10, 10 as shown'in Fig. 14.' rlhe ends 1l lot the ribs 9 extend in toward the axis of the bolt anchor a suflicientdistance to engagewith the bolt l2 of minimum cross section to he used with that particular sized bolt rancher. When the ooit anchor l, for example, has heen located in the aperture 7,

the article supported 13, .will `be firmly clamped to the support @by thernale screwthreads oit the .bolt 12 cutting their own female screw threads on the ends of the longitudinally extending ribs 9, 9, Fig. 2. 1When for any reason it is necessary'or de sirable to use with the same diameter bolt anchor a bolt or screw largerl .in cross Sectionthan the bolt 12, the same bolt anchorl will readily cooperate with the larger bolt 14, Fig. 3, the longitudinally extending ribs 9, 9 being bentv as shown for example in Fig. 3. The larger boltforms a larger axial bore in the bolt anchor and at the same time cuts its own threads in the 1re-positioned ribs. Should a bolt of, for example, the minimum size 12 or some intermediate size 14 be not accessible, or for any reason it is desirable to use a larger bolt or screw 15, the same bolt anchor 1 will, by means of our invention readily coperate with the larger bolt or screw l5, Fig; e. lll/lith such a bolt 15, which is assumed for purposes of illustration to be the maximum sized bolt or screw "hich will cooperate with the given sized bolt anchoi` 1, the longitudinally extending ribs 9, 9 will be still further displaced and repositioned, their ends 11 being bent in the direction of rotation of the screw and pressed into the openings 1G, 1G, Fig. 2, between the different longitudinal ribs and will substantially close these openings, thereby forming an entirely new and larger axial bore in the bolt anchor l within which the bolt or screw l5 cuts its own threads. Thabolt o r screw bends the ribs and cuts its own threads substantially simultaneously. lt is, oi course, to be understood, however, that should. it' ever be desirable, the longitudinal ribs "9, 9 may be bent by hand or tools beforey the insertion of th'e-bolt or screw, but as this Awould be an additional step, it would not. ordinarily be done.

In illustrating the bolt l2 of minimum cross section and a bolt 15 of maximum cross sect-ion, it is to be clearly understood that.

screws or bolts of differentcross sections within this wide range may be used with the same diameter bolt anchor.

We, preferably, though not necessarily, weaken the longitudinally extending ribs 9, 9 so that they will bend more readily. This may be done in various ways. For example, we may cut away the ribs at 17, 17 forming a neck 18 which will permitthe ribs to be readily bent upon the insertion of a screw or bolt of any cross section greater than that of the minimum, as for example the bolt 12, which will cut itsown screw threads in the ends 11 without appreciably bending the longitudinal extending ribs 9.

In some cases we may provide a bolt ancher-'20, Figli, with inwardly extending longitudinal ribs 2l, 21, Fig. 6, each rib having a weakened end 22 in the form of a nooners tooth vwithin which the .bolt orscrew 23, oi'" minimum cross section', is adapted to cut ownthreads without bending the ribs. Upon inserting a largerv boit or screw 24%, Fig. 7, these ribs 21 will be bent in the di rection of rotation ci the screw 2d aridiorin a 'larger axial bore in the bolt anchor 20. it

is obvious that upon inserting a larger bolt' or screwI than 24 the longitudinally extending ribs 21 will be still .further bent until they substantially ,touch each other, the openings between the .diderent ribs being then substantially closed.

lllhile we preferably use'a one piece 'bolt anchor formed of some ductile material such 4as lead or an alloy, we may, however, form t-he bolt anchor of two or more parts as shown in Figs. 8 and 9. In this form of our invention the bolt anchor 25 is formed of two sections 26, 26 secured together by means of the clamping ears 27 on one section 26- which lit into the ycomplementary openings 28 on the other section 26 and are bent inward to hold the two sections 26, 26 together. We preferably set in the clamping ears 2? from the end 447 of the bolt anchor so that the insert-ion of the bolt or screw 48 will. cause the two members 26, 26 to Divot `on the ears 2?. Topreyent the screw 48 from forcing the two members 2G, 26 apart to such an extent as to withdraw thelocking ears 2T from their coperat-ing recesses 28, we cut away the end of the members 26, 2G so that the tvo inclined surfaces 29, 29 will not contact with each other and hence there can be no pivoting of the two members 2G, 26 except on the clamping ears 27. On the interior oi the different members 26, 2G we provide a plurality of longitudinally extending ribs 39, 30 having weakened end portions 31 which are initially bent or curved in the direction of rotation of the bolt i8. This screw or bolt 48, which it will be assumed willbe of the minimum cross sectionitor the particular sized bolt anchor, will cut its own threads in the longitudinally extending ribs 30 without substantially bending them. A larger bolt or screw 32', Fig. 9, inserted in the same bolt anchor 25 will cause the different longitudinally extending ribs 30, 30 to cont-act with each other and substantially close the openings 131 between them, Fig. 11. It will, therefore, be seenA that in a two part bolt anchor, as well as in a one-part bolt anchor.y 'various sized bolts or screws, within a wide range, can be used with a bolt anchor of a given cross section.

lllhile we preferably form the bolt. anchor out of ductile material we may for example form the body of the bolt anchor 38, Fig. 12, out of cast iron or some other rigid material and mount within it projections 0r ribs 34C, of some ductile material which will yield to cooperate with dierent sized bolts or screws and within'which complementary screw threads can be formed by the boltl or screw.

We may also form our bolt anchor of rigid material such as cast iron, or similar material 35, Fig. 13, and provide it with a 36 of some ductile material, which lining. will carry the longitudinally in? Vwardly extending ribs or projections 37 preferably formed integral with the lining. ,In Fig. 13 we have shown| the lining in a two part b'olt anchor, though, of course, it .is to be understood that it may be'u'sed with a one part bolt anchor 50, if so desired, Fig.

1 5, having a lining 51- and projections 52.

. While in all forms ofour invention we preferably use longitudinal extending ribs, so that as one rib is forced into engagement Y with its adjacent rib there will be substan- .2@

tially a continuous wall for the screw-or bolt to cut its own female threads. vWe may,

however, vuse staggered, or any form of profv jectionsdike l0, 10, Fig. 14, for all such forms would come within the terms of our invention.

f g ribs, however, a larger bolt or screw, to support a heavier object, will bend the ribs so as to form a larger interior bore having substantiallycontinuouswalls in which the thread on the bolt or screw will form a substantially continuous female thread and consequently form a stronger hold between the anchor and bolt or screw than if merely staggered or other projections as' 10 were employed. H It will, therefore, befseen that by our invent-ion it will not be necessary to manufactureor keep insteek a given sized bolt anchor for' substantially each size of given sized bolt anchor will receiveand cooperate with bolts or screws of yvarious cross sections within a relatively wide range.

In those cases where the bolt anchor is used with a larger bolt or screw than the one of minimum cross section for that sized bolt or screw, but that on thel contrary a bolt anchor, it is, of course/to be understood I that if the cross 'section of .the opening in the support, is greater than the support to receive the bolt anchor, ,fthe bolt anchor will With longitudinally extendingl .I be 'expanded I' without bending the projections or longitudinally extending ribs, the

Ylarger screwor bolt in that case cutting its own coperating'female thread in the projections or ribs without bending them.

Having thus described this invention -in connection with several illustrative embodi- 'ments thereof to the details of which w'e do notdesire to be limited, what is claimedas new and what it is desired to secure by Letters Patent-'is set forth in the appended claims: 1 The combination of a bolt anchor of a given diameter comprising a body member and rbendable portions of ductile material Carried onv the interior of the bolt anchor and adapted to cooperate with means of-different diameters.

2. bolt anchor comprising a body member and interior ductile projections adapted to be bent independently of the body member to cooperate with dierent sized bolts and screws. 1

3.` A bolt anchor comprising a body mem# ber and interior weakened duct-ile projections adapted to be bent circumferentially and independently of the body member, to cooperate with different sized bolts and screws.

4. A bolt anchor including a body member provided with a plurality of interior vspaced ductile projections arranged tangentially tol the interior bore of the body member and adapted to have relative and independent 'movement with relation to the body member expanding4 

